The sensor is invented by Starwin specialized apply to gas wall hung boiler and gas water heater for instead of pressure switches. The failure rate of pressure switches is 2-4%,while The failure rate of pressure sensors is 0.0001%.
*Cost Effective: our pressure sensor cost is lower than pressure switches.
*High precision: the measuring accuracy can reach to ±1%FS.
*Completely solve the malfunction rate of pressure switch long-time use.
*Real-time monitoring of pressure, accurate matching, efficient combustion, safe discharge.
*Against external mutation pressure.
*Keep constant temperature
*Can set up multi-point of pressure protection, safe and secure.
*No accuracy attenuation with long-term use.
*Wide temperature compensation range.
*Quick response.
Working Voltage is DC 5V and Air Pressure Range including: 0-100Pa,0-120Pa,20-200Pa,30-500Pa,100-1000Pa,250-1500Pa （Optional）,Signal Output is Linear Frequency, Measure Precission：±1%FS,Environmental Humidity：-20～85℃,Resistance Pressure：100 times of Full scale Value
Comparison Between Starwin Air Pressure Sensor and Air Pressure Switch
| Product Name | Origin Air Pressure Switch | Newly Air Pressure Switch | Starwin Differential Air Pressure Sensor |
|---|---|---|---|
| Photos |  |  |  |
| Film Bongding Issue | The inner cavity of the shell is planar structure, which is easy to bond. | The shell cavity is non-planar structure, and the piston side is serrated design, which makes it difficult to bond. | The inner cavity of the shell is non-planar structure, the piston side is thickened, and the surface of the plate is added with tibial strip and convex point, which will not make it to bond. |
| leakproofness | Plane sealing effect is not good, and the upper and itslower shell expansion coefficient is inconsistent so it is easy to leak. | Groove sealing effect is good, and its the upper and lower shell expansion coefficient is consistent, which is going to leak casually. | The groove sealing effect is good, and Starwin adopts imported polymer material by adding special fiber, which will not leak any more. |
| Data Excursion Issue | The original calibration d calibration on and off data drifts with the use of time,which will resulting in abnormal working properly. | The original calibration d calibration on and off data drifts with the use of time,which will resulting in abnormal working properly. | Built-in temperature compensation circuit, adopting linear frequency output, but also can be arbitrarily set a number of on/off points without any data excursion. |
| Resistance&Stability | The terminal is easy to oxidize, the with poor contact which will lead to false alarm and can not work normally. | The terminal is easy to oxidize, the with poor contact which will lead to false alarm and can not work normally. | Using electromagnetic induction technology without terminal and mechanical friction, which can completely eliminate contact oxidation and poor contact fault. |
